Ink fountain for disk ruling machines



sept. s,

G. J. R'ENz INK FOUNTAIN FOR DISK RULING-MACHINES Filed Feb. 12,; 194;

` INVENT OR. ,M/ME J. /E/vz iBY `// a5 34 sa a7 y AWM/Mrs Patented Sept.5, 1944 INK FOUNTAIN FOR DISK RULING MACHINES George J. Renz, MiddleVillage, N. Y. Application February 12, 1941,v Serial No. 378,689

('Cl. lill-364) 2 Claims.

This invention relates to ink fountains of the type which include aroller and wiper coacting therewith and while not necessarily restrictedthereto, the same is primarily designed for use in connection with diskruling machines. The invention is particularly directed to an improvedwiper construction by virtue of which the feeding of the ink may be moreprecisely controlled or regulated so that the lines being ruled willpossessV a high degree of uniformity.

As a further feature, the invention comprehends in an ink fountain, awiper blade which is so constructed, arranged and mounted asvto providefor a multiple'of adjustments to thereby compensate for'variations inthediameters'of 15 the inking rollers, to vary the amount of ink being fedand to permit of shifting of the blade axially with reference to theroller to avoidundue wear on 4the blade especially where the surface ofthe 20 roller has been cut or damaged.

The invention further provides a wiper blade mounting which permits ofthe disposal of the blade in an inactive position out of c-ontact withthe surface of the roller when the ink fountain isnot in use.

With the above and other objects in view, the invention is set forth ingreater detail in the following specication and illustrated in theaccompanying drawing, in which:

Fig. 1 is a vertical sectional view through the fountain takenapproximately on the' line I-I of Fig. 2. y 1

Fig. 2 is a -top plan View of the ink fountain.

Fig. 3 is a vertical sectional view taken ap- 3f proximately on Itheline` 3 3 of Fig. 2.

Fig. 4 is a vertical sectional view through a fountain illustrating amodification of the invention.

' Fig. 5 is a fragmentary top plan view thereof.

Referring to the drawing and more particularly to the form of theinvention illustrated in Figs. 1, 2 and 3, I!) designates an inkingfountain which is in the form of a rectangular open top receptaclehaving a bottom wall I I and mar- 45 carried by depending brackets I8.Each bracket 50 I8 is formed with a base I9 which is adjustablysupported by a wear plate 29 secured to the bottom wall II of thefountain and retained in adjustment by means of set screws 2 I.

In this form of the invention, the wiper blade 55 25 which preferablyconsists of an elongated rectangular strip of rubber is detachablysecured by a clamping strip 26 to a holder bar 21. The blade holder lbar21 is provided adjacent each of its opposite ends with a bore 28 andsaid bores freely receive therethrough a pair of threaded arms 29provided at their lower ends with enlarged knuckles 30 having transversebearing openings 3l. The bearing openings are disposed in axial 0alignment with each other and receive trunnions 32 which projectlaterally from bearing blocks 33 resting upon and supported by thebottom wall IIV of the ink fountain. The bearing blocks are providedwith horizontal threaded openings 34 which are engaged by threaded stems35 extending through therear wall I34 of the ink fountain and swiveledin bearing bosses 36 protruding rearwardly from the wall I 3.

The rear outer ends of the stems have secured thereto knurledmanipulating knobs 3l by means of which the bearing blocks 33 areslidably adjustable upon the bottom of the fountain for movement towardsand away from the feed roller I5. 29 which protrude beyond the upperedge of the blade vholder bar 21 are engaged by knurled cylindrical nuts38 formed with reduced tubular Shanks 39 having enlarged heads 40engaging grooved portions 4I which communicate with the bores 28.

From this construct/ion and arrangement, it is apparent that turning ofthe nuts 38 Vin opposite directions will effect raising and loweringmovement of the blade holder 21 and consequent raising and loweringadjustment of the wiper blade 25 in its own plane Yto vary theinclination of the blade which extends in an upwardly inclined relationto the roller with the upper edge thereof engaging the roller periphery.The blade is also mounted for swinging movement on the trunnions 32 as afulcrum from the active position engaging .the roller, as shown, to aninactive position when it is swung rearwardly away from the roller andtowards the rear wall I 3, The adjustment of the blade by means of thenuts 38 to vary the inclination of the same controls or regulates thequantity of ink being fed by the roller and the precision with which theadjustment is made insures a uniform feed of ink throughout the lengthof the roller 4which is highly desirable where the roller is engagingthe disks of a disk ruling machine as this results in uniformity of thelines being ruled. An increase in the inclination of the blade, that is,an upward Theupper portions of the threaded arms movement thereof, willincrease the quantity of ink fed and conversely a decrease in theinclination will decrease the quantity of ink fed by the roller. Byindividually adjusting the bearing blocks 33 towards and away from theroller, the edge of the wiper blade 25 may be accurately disposed inparallel relation to the roller so as to insure uniform feeding of theink by the roller to the ruling disks to thereby obtain lines possessinga high degree of uniformity. This adjustment of the blade alsocompensates for variations in the sizes of the feed rollers being used.It will be further observed that the bearing knuckles 30 have a limitedmovement axially of the trunnions 32 which permits of the shifting ofthe blade axially with reference to the roller in its own plane therebyavoiding undue wear on localized portions of the blade which occurswhere the surface of the feed roller has become cut or damaged.

In the modified form of the invention illustrated in Figs. 4 and 5 ofthe drawing, the bearing blocks 5I] are fixed in the ink fountain I 0and in this instance the base I9 of each roller bracket I8 is formedwith a threaded boss 5I which is engaged by the threaded terminal 52 ofa stem 53 swiveled as at 54 in the bearing block and provided at itsrear end with a-knurled manipulating knob 55 by means of which the feedroller I5 is adjusted towards and away from the Wiper blade 25. In otherrespects the invention is identical with the previous form. In themodification, the relative adjustment of the wiper blade and rollertowards and away from each other is accomplished by turning themanipulating knobs 55 so as to compensate for variations in the sizes ordiameters of the feed rollers and effect the proper alignment of thewiper blade with the feed roller.

What is claimed is:

1. In an ink fountain for disk ruling machines, an elongated open topink reservoir, a feed roller, bearing means mounting said feed rollerfor rotation on a horizontal axis extending longitudinally of thereservoir with the lower portion of the roller immersed in the ink, awiper blade and means for mounting said blade to extend upward at aninclination with the upper edge thereof having free gravitationalengagement with the feed roller above its axis of rotation, said blademounting means comprising a clamping bar engaged with the lower edge ofthe wiper blade and having a bore adjacent to each of its opposite endsextending therethrough in a direction parallel to the plane of theblade, bearing blocks supported in longitudinally spaced relation withintrolling the volume vof the ink delivered by the feed roller and forpermitting lateral shifting of the wiper with reference to the feedroller to effect even wear thereon, and means for independentlyadjusting with reference to each other the opposite ends of the feedroller and the respective bearing blocks so as to obtain longitudinalalignment of the edge of the wiper blade with the periphery of the feedroller to insure uniform feeding of the ink throughout the length of thefeed roller.

2. In an vink fountain for disk ruling machines, an elongated open topink reservoir, a cylindrical feed roller, bearing means mounting saidroller for rotation ona horizontal axis extending longitudinally of thereservoir with the lower portion of the roller immersed in the ink, awiper blade and means for mounting said blade to extend at an upwardinclination with the upper edge thereof having free gravitationalengagement with the feed roller above its axis of rotation, said blademounting means comprising a clamping bar engaged with the lower edge ofthe wiper blade and having a bore adjacent each of its opposite endsextending therethrough in a direction parallel to the plane of theblade, bearing blocks supported in longitudinally spaced relation withinthe bottom of the reservoir, arms carried by said bearing blocks mountedon aligned horizontal axes for swinging movement and having threadedterminals freely extending through the bores, nuts swivelly carried bysaid clamping bar and engaging the threaded terminals of the arms foradjusting the wiper blade in its own plane so as to vary the inclinationthereof to control the volumeof ink delivered by the feed roller, andmeans for effecting independent-adjustments of the opposite ends of thefeed roller and the respective bearing blocks toward and away from eachother to effect longitudinal alignment of the edge of the wiper bladewith the periphery of the feed roller so as to insure uniform feeding ofthe ink thereby throughout the length thereof.

GEORGE J. RENZ.

